Arizona Cardinals outside linebacker Kylie Fitts has announced his retirement at the age of 27, citing multiple concussions.

In an Instagram post, Kylie Fitts wrote that it was no longer safe for him to play the game following a string of concussions. 

“After 21 years of playing, football has come to an end for me. Due to too many concussions and the severity of my recent one, it is no longer safe for me to continue to play. I am so grateful for this game and everything it has taught and brought into my life. Thank you to all my coaches and teammates throughout my career,” he wrote. 

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Thanking his family for their constant support, he added, “I am also so thankful for my family and wife who have supported me through all the ups and downs and special thank you to my dad. Spent countless hours, early mornings and late nights helping me reach my goal of always wanting to play in the NFL. I believe we were created beyond just playing the game. I know God has great plans for me and my family and I’m so excited for what he has in store for me next!”

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Fitts was picked up by Chicago Bears in 2018. He appeared in six games for the team as a rookie before joining the Arizona Cardinals in 2019, as a member of their practice squad. The following year, he appeared in 13 games for Cardinals, finishing with nine tackles, a quarterback hit and a forced fumble. After appearing in six games last year, he missed the rest of the season due to injuries before ending his career as a free agent.